civilization collapse

Paul R. Ehrlich † ⇓  and  Anne H. Ehrlich - Author Affiliations Department of Biology , Stanford University,  Stanford, CA 94305 , USA e-mail:  pre@stanford.edu Environmental problems have contributed to numerous collapses of civilizations in the past. Now, for the first time, a global collapse appears likely. Overpopulation, overconsumption by the rich and poor choices of technologies are major drivers; dramatic cultural change provides the main hope of averting calamity. Article here